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**82495DX/490DX DX CPU-Cache Chip Set                           <Sep91
***Notes:...
***Info:...
***Configurations:...
***Features:...
**82495XP/490XP Cache Controller / Cache RAM (for i860)       06/05/91...
**82496/491     Cache Controller / Cache RAM (for P5 Pentium) 03/22/93...
**82497/492   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**82498/493   Cache Controller / Cache RAM (for P54 Pentium)    <Nov94...
**
**Later chipsets (basic spec):
**440 series:...
**450NX  (?)            06/29/98:...
**?????  (Profusion)    c:99...
**800 series...
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*UMC...
**UM82C852     Multi I/O For XT                                    <91
***Info:...
***Versions:...
***Features:
o   Supports game port
o   Supports 2nd serial port
o   Centronics printer interface
o   Independent control of transmit, receive, line status and data set 
    interrupts
o   Individual modem control signals
o   Programmable serial interface characteristics:
    — 5, 6, 7 , or 8 bit characters
    — Even, odd or no-parity bit generation and detection
    — 1, 1-1/2, or 2 stop bit generation
o   Milliseconds through month counters for real time clock 56 bits of
    RAM 
    with comparator for comparing the real time counter to the RAM 
    data
o   POWER DOWN input that disables all inputs and outputs
o   Disables the chip from the reset of the system for standby low 
    power operation by use of a POWER DOWN input
o   32,768 Hz crystal for real time clock
o   Four-year calendar (no leap year)
o   24-hour clock

**UM82C206     Integrated Peripheral Controller                    <91...
**UM82c45x     Serial/Parallel chips                                 ?
***Notes:...
**Other chips:...
*Unresearched:...
*VIA...
*VLSI...
*Western Digital...
*Winbond...
**W83626F/D   LPC TO ISA Bridge Set                                <00
***Info:...
***Versions:...
***Features:...
**
**Multi I/O:
**W83757          SUPER I/O  CHIP                                  <92...
**W83767F         ??           Multi I/O  [no datasheet]
**W83777F/87F     Power I/O   (Multi I/O)                          <95...
**W83877F         WINBOND I/O (Multi I/O)                          <96...
**W83877TF/TG/TD  WINBOND I/O (Multi I/O)                          c97...
**W83977F/G/AF/AG WINBOND I/O (Multi I/O)                          c97...
**W83977TF        WINBOND I/O (Multi I/O)                          c97...
**W83977EF        WINBOND I/O (Multi I/O)                          <98...
**W83977ATF       WINBOND I/O (Multi I/O)                          <98...
**
**Disk Controller:
**W83759/A/F/AF   Advanced VL-IDE Disk Controller                  <96...
**W83769          Local Bus IDE Solution                           <94...
**
**UARTS:
**W86C250A  UART (equivalent of INS8C250A) [no datasheet]
**W86C450/P Universal Asynchronous Receiver/Transmitter         <Jul89...
**W86C451   I/O controller for IBM PC/AT/XT                     <Jul89...
**W86C452   I/O controller for IBM PC/AT                         Jul89...
**W86C456   I/O controller [no datasheet]                            ?
**W860551/P UART with FIFO and Printer Port Controller             <94...
**
**Other:...
*ZyMOS...
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